CN111706253A - Tunnel anchor rod drilling construction method - Google Patents
Tunnel anchor rod drilling construction method Download PDFInfo
- Publication number
- CN111706253A CN111706253A CN202010463429.XA CN202010463429A CN111706253A CN 111706253 A CN111706253 A CN 111706253A CN 202010463429 A CN202010463429 A CN 202010463429A CN 111706253 A CN111706253 A CN 111706253A
- Authority
- CN
- China
- Prior art keywords
- rock drilling
- working arms
- double
- station
- tunnel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/003—Supports for the drilling machine, e.g. derricks or masts adapted to be moved on their substructure, e.g. with skidding means; adapted to drill a plurality of wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/04—Supports for the drilling machine, e.g. derricks or masts specially adapted for directional drilling, e.g. slant hole rigs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
Abstract
The invention belongs to the field of road and bridge construction, and particularly relates to a tunnel anchor rod drilling construction method which comprises the following steps of S1: configuring a rock drilling device with double working arms, and placing the rock drilling device with the double working arms in a tunnel; s2: configuring the position of the rock drilling equipment with the double working arms in the tunnel, so that the distance L between the rock drilling equipment with the double working arms and a rock drilling working face is a threshold value; s3: different drilling holes are defined as stations, two working arms of the rock drilling equipment with the double working arms always keep station intervals of a plurality of physical spaces, and the two working arms rotate holes at the same time or at intervals to work. The invention can effectively avoid the problem that the working arms of two rock drilling devices interfere with each other and cannot be normally constructed, and can also effectively improve the construction efficiency of the rock drilling device with double working arms, accelerate the construction progress and reduce the construction cost.
Description
Technical Field
The invention belongs to the field of road and bridge construction, and particularly relates to a tunnel anchor rod drilling construction method.
Background
In the tunnel construction technology at home and abroad, the anchor rod is a core component of construction and plays a very important role. In the domestic technology, the YT-28 air leg rock drill is generally adopted for drilling, the equipment needs to be operated by means of an excavation rack when arch parts and side walls are operated, and a manual drilling mode is adopted, so that the conventional YT-28 rock drill is very dangerous, has great potential safety hazards, and is greatly harmful to the bodies of operators, such as dust, noise and the like. Although the prior art also starts to adopt the drill jumbo for operation, in the process of adopting the double-arm drill jumbo for anchor rod construction of the double-lane tunnel, two drill booms cannot operate simultaneously due to limited operation space, only one drill boom can be used for operation, and in the process of construction, the drill jumbo is frequently required to be moved for multiple times due to limited operation space, so that the construction efficiency of the double-arm drill jumbo is greatly reduced.
Disclosure of Invention
The invention aims to provide a tunnel anchor rod drilling construction method.
Based on the purpose, the invention adopts the following technical scheme:
the tunnel anchor rod drilling construction method comprises the following steps:
s1: arranging a rock drilling rig (a) with double working arms, and placing the rock drilling rig (a) with double working arms in a tunnel;
s2: arranging a rock drilling device (a) with double working arms at the position of the tunnel, so that the distance L between the rock drilling device (a) with double working arms and a rock drilling working face is a threshold value;
s3: different drill holes (c) are defined as stations, two working arms (b) of the rock drilling equipment (a) with double working arms always keep a plurality of station intervals in physical space, and the two working arms (b) work at the same time or at intervals in hole rotating mode.
Furthermore, the rock drilling equipment (a) with double working arms adopts a double-arm rock drilling jumbo.
Further, the rock drilling device (a) with double working arms adopts an Atlas copco Boomer L2D type double-arm rock drilling jumbo, the length of the large arm is 5.0m, the telescopic length of the large arm is 1.80m, the length of a propeller is 5.88m, the rock drilling device (a) with double working arms is in position in a tunnel, in particular the Atlas copco Boomer L2D type double-arm rock drilling jumbo is moved to the vicinity of a rock drilling working face, the horizontal distance L threshold value of a front wheel and the working face is 5 m-6.2 m when in position, and the rock drilling device (a) is positioned at one time.
Further, the drilling holes (c) with different definitions are stations, two working arms (b) of the rock drilling equipment (a) with double working arms always keep a plurality of station intervals of physical space, the two working arms (b) rotate holes simultaneously or at intervals for working, in particular,
different drill holes (c) are configured to be 9 stations, stations 1-9 are sequentially arranged from the right end to the left end of the working face, the station 5 is located at the middle position of the top of the working face, firstly, the station 5 is constructed through one working arm (b), then, the station 6 is constructed, after the station 6 is constructed for 1.0m, the station 1 is constructed through the second working arm (b), then, the station 7, the station 8 and the station 9 are constructed through the first working arm (b), and the station 2, the station 3 and the station 4 are constructed through the second working arm (b) sequentially.
Further, before the tunnel is in place, the tunnel construction of the rock drilling equipment (a) with the double working arms adopts a new Austrian method as an integral construction foundation and adopts a step-up and step-down method as a specific construction foundation.
Advantageous effects
The invention can effectively avoid the problem that the working arms of two rock drilling devices interfere with each other and cannot be normally constructed, and can also effectively improve the construction efficiency of the rock drilling device with double working arms, accelerate the construction progress and reduce the construction cost. In particular, the invention can effectively avoid the problem that the drill arms of the two double-arm drill jumbo interfere with each other and cannot be normally constructed, and can also effectively improve the construction efficiency of the double-arm drill jumbo.
Drawings
FIG. 1 is a process flow diagram of a tunnel anchor drilling construction method of the invention;
FIG. 2 is a front view of an embodiment of the present invention in a construction state;
FIG. 3 is a side view of the construction state of the embodiment of the present invention.
Detailed Description
The present invention is further described below with reference to examples.
In specific implementation, referring to fig. 2-3 and fig. 1, the tunnel anchor drilling construction method of the present invention includes the steps of:
1. arranging a rock drilling rig (a) with double working arms, and placing the rock drilling rig (a) with double working arms in a tunnel;
2. arranging a rock drilling device (a) with double working arms at the position of the tunnel, so that the distance L between the rock drilling device (a) with double working arms and a rock drilling working face is a threshold value;
3. different drill holes (c) are defined as stations, two working arms (b) of the rock drilling equipment (a) with double working arms always keep a plurality of station intervals in physical space, and the two working arms (b) work at the same time or at intervals in hole rotating mode.
In one embodiment, and as shown with reference to fig. 2-3, the described rock drilling rig (a) with dual working arms employs a dual arm rock drilling rig. The double-arm drilling jumbo, also called double-arm drilling jumbo, is double-arm drilling equipment for tunnel and underground engineering construction by adopting a drilling and blasting method, and a working mechanism mainly comprises a propeller, a drilling arm, a slewing mechanism and a translation mechanism.
In one embodiment, and as shown with reference to fig. 2-3, a rock drilling rig with double working arms (a) using an Atlas copco boomer L2D type two-arm rock drilling rig, with a boom length of 5.0m, a boom extension length of 1.80m, a propeller length of 5.88m, moving the rock drilling rig with double working arms (a) in a tunnel-in-place position, in particular an Atlas copco boomer L2D type two-arm rock drilling rig, to the vicinity of a rock drilling face, with a horizontal distance L threshold of the front wheels from the face in the position of 5 m-6.2 m, and positioning once; the double-arm rock drilling jumbo does not need to be moved additionally to be in place again, so that the construction continuity can be realized, and the construction progress is further accelerated.
In one embodiment, as shown in fig. 2-3, the different bores (c) are defined as stations, and the two working arms (b) of the rock drilling rig (a) with double working arms always maintain a plurality of physical spatial station intervals, and the two working arms (b) work simultaneously or alternately in hole rotation, specifically, the different bores (c) are configured as 9 stations, and the stations 1-9 are arranged from the right end to the left end of the working surface in sequence, the station 5 is positioned at the middle position of the top of the working surface, firstly, the station 5 is constructed by a working arm (b), then constructing a station 6, starting a second working arm (b) to construct the station 1 after the station 6 is constructed for 1.0m, then, a station 7, a station 8 and a station 9 are constructed in sequence by the first working arm (b), and a station 2, a station 3 and a station 4 are constructed in sequence by the second working arm (b).
In practice, referring to fig. 2, the anchor rod drilling construction comprises the following steps: firstly, constructing a vault anchor rod 5 by one drill boom, then constructing an anchor rod 6, and starting a second drill boom construction anchor rod 1 after the anchor rod 6 is constructed about 1.0 m. Then, the anchor rod 7, the anchor rod 8 and the anchor rod 9 are constructed in sequence by the first drill boom, the anchor rod 2, the anchor rod 3 and the anchor rod 4 are constructed in sequence by the second drill boom, the problem that normal construction cannot be conducted due to mutual interference of the two drill booms can be effectively solved, meanwhile, the construction efficiency of the double-arm drill jumbo can be effectively improved, the construction progress is accelerated, and the construction cost is reduced.
One specific embodiment: the anchor rod of the project tunnel engineering system of the highway in the north and south of the black mountain adopts an SN anchor rod with the length of 4m and the diameter of 25mm, and each section of an upper step is distributed with 9 system anchor rods. Through field implementation, if the prior art is adopted, only a single arm can be adopted for constructing the anchor rod, the time for completing one drilling hole by each drill arm is 3min, and at least 27min is required for completing the drilling holes of 9 anchor rods. The time for completing one drilling hole by each drill boom is 3min, two drill booms are adopted for construction, 5 and 4 anchor rod drilling operations are completed respectively, and the total drilling time is 15.75min under the condition that the time required by the displacement of the drill booms and the extension of the drill rods is not considered. By adopting the construction method, at least 11.25min can be saved in each cycle. Therefore, the construction scheme can accelerate the construction progress and effectively reduce the construction cost.
In the specific implementation, the rock drilling equipment (a) with double working arms adopts a new Olympic method as an integral construction foundation for tunnel construction before the tunnel is in place, and adopts a step-up and step-down method as a specific construction foundation; the new Austrian method is to adopt millisecond blasting and smooth blasting technology to carry out full-section excavation construction on the premise of utilizing the bearing efficiency of surrounding rock, and form a composite inner and outer two-layer lining to construct a tunnel body, namely, a primary flexible support is adopted by taking sprayed concrete, an anchor rod, a reinforcing mesh, a steel support and the like as an outer layer support form, and the primary flexible support is tied to support work which is required to be carried out immediately after the tunnel body is excavated. The upper and lower step method is a construction method in which a section of the upper part of the tunnel (an upper step) is excavated, a section of the lower part (a lower step) is excavated after the upper step advances for a certain distance, and the upper and lower steps move in parallel.
Claims (5)
1. The tunnel anchor rod drilling construction method is characterized by comprising the following steps of:
s1: arranging a rock drilling rig (a) with double working arms, and placing the rock drilling rig (a) with double working arms in a tunnel;
s2: arranging a rock drilling device (a) with double working arms at the position of the tunnel, so that the distance L between the rock drilling device (a) with double working arms and a rock drilling working face is a threshold value;
s3: different drill holes (c) are defined as stations, two working arms (b) of the rock drilling equipment (a) with double working arms always keep a plurality of station intervals in physical space, and the two working arms (b) work at the same time or at intervals in hole rotating mode.
2. A tunnel bolting bore hole construction method according to claim 1, wherein said rock drilling rig (a) with double working arms employs a double arm rock drilling jumbo.
3. A tunnel bolt drilling construction method according to claim 1, characterized in that the rock drilling equipment (a) with double working arms adopts an Atlas copco boom L2D type double-arm rock drilling jumbo, the length of the big arm is 5.0m, the telescopic length of the big arm is 1.80m, the length of the propeller is 5.88m, the rock drilling equipment (a) with double working arms is in tunnel setting, in particular the Atlas copco boom L2D type double-arm rock drilling jumbo is moved to the vicinity of the rock drilling working face, the horizontal distance L threshold value of the front wheel and the working face is 5 m-6.2 m when in setting, and the positioning is carried out once.
4. A tunnel anchor rod drilling construction method according to claim 1, characterized in that the different boreholes (c) are defined as stations, two working arms (b) of the rock drilling equipment (a) with double working arms always keep a plurality of station intervals of physical space, the two working arms (b) work at the same time or at intervals by rotating holes, the operation method is that the different boreholes (c) are configured as 9 stations, and the stations 1-9 are sequentially arranged from the right end to the left end of the working surface, the station 5 is positioned at the top middle position of the working surface, firstly, the station 5 is constructed by one working arm (b), then, the station 6 is constructed, after the station 6 is constructed for 1.0m, the second working arm (b) construction station 1 is started, then, the station 7, the station 8, the station 9 and the second working arm (b) are constructed sequentially, and the station 2, Station 3 and station 4.
5. A tunnel bolt drilling construction method according to claim 1, characterized in that the rock drilling equipment (a) with double working arms is used for tunnel construction before the tunnel is in place by using the new Austrian method as an integral construction foundation and using the up-down step method as a concrete construction foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010463429.XA CN111706253A (en) | 2020-05-27 | 2020-05-27 | Tunnel anchor rod drilling construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010463429.XA CN111706253A (en) | 2020-05-27 | 2020-05-27 | Tunnel anchor rod drilling construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111706253A true CN111706253A (en) | 2020-09-25 |
Family
ID=72538845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010463429.XA Pending CN111706253A (en) | 2020-05-27 | 2020-05-27 | Tunnel anchor rod drilling construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111706253A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202810650U (en) * | 2012-09-12 | 2013-03-20 | 山东鲁能泰山矿业开发有限公司 | Crawler-type double-arm full-hydraulic drilling rig |
| CN107842311A (en) * | 2017-12-22 | 2018-03-27 | 长沙科达智能装备股份有限公司 | A kind of multifunctional tunnel rock drilling arching all-in-one |
| CN108286431A (en) * | 2017-01-10 | 2018-07-17 | 重庆宝爵机械设备有限公司 | A kind of Multifunction construction equipment for drill+blast tunnel construction |
| CN108979529A (en) * | 2018-08-01 | 2018-12-11 | 中铁十九局集团第六工程有限公司 | A kind of two arm rock drilling jumbo tunnel boring methods |
| CN209604007U (en) * | 2018-12-28 | 2019-11-08 | 中铁隧道集团三处有限公司 | IV grade of tunnel country rock loopful excavates three arm rock drilling jumbos of drillhole blasting |
| CN110607989A (en) * | 2019-10-25 | 2019-12-24 | 中国铁建重工集团股份有限公司 | Rock drilling trolley and tunnel tunneling construction method for reducing surrounding rock disturbance |
-
2020
- 2020-05-27 CN CN202010463429.XA patent/CN111706253A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202810650U (en) * | 2012-09-12 | 2013-03-20 | 山东鲁能泰山矿业开发有限公司 | Crawler-type double-arm full-hydraulic drilling rig |
| CN108286431A (en) * | 2017-01-10 | 2018-07-17 | 重庆宝爵机械设备有限公司 | A kind of Multifunction construction equipment for drill+blast tunnel construction |
| CN107842311A (en) * | 2017-12-22 | 2018-03-27 | 长沙科达智能装备股份有限公司 | A kind of multifunctional tunnel rock drilling arching all-in-one |
| CN108979529A (en) * | 2018-08-01 | 2018-12-11 | 中铁十九局集团第六工程有限公司 | A kind of two arm rock drilling jumbo tunnel boring methods |
| CN209604007U (en) * | 2018-12-28 | 2019-11-08 | 中铁隧道集团三处有限公司 | IV grade of tunnel country rock loopful excavates three arm rock drilling jumbos of drillhole blasting |
| CN110607989A (en) * | 2019-10-25 | 2019-12-24 | 中国铁建重工集团股份有限公司 | Rock drilling trolley and tunnel tunneling construction method for reducing surrounding rock disturbance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107288648B (en) | Supporting system and supporting method for open type full face rock tunneling machine | |
| CN201982011U (en) | Track type drilling trolley | |
| CN103775092B (en) | Tunnels in Shallow Buried tunneling remaining core soil in advance improvement CRD construction | |
| WO2021203625A1 (en) | Composite supporting structure, and construction system and method | |
| CN106337686A (en) | Rock stratum underground excavation three-story subway station umbrella cover structure and construction method thereof | |
| CN106907159A (en) | A kind of Shallow Covered Metro Station separates open type structure and its construction method | |
| CN204729099U (en) | Rock quality layer tunneling three layers of subway station canopy structure | |
| CN102226399A (en) | Soft rock four-line large-span tunnel three-bench cable-bracing excavation construction method | |
| CA2933655A1 (en) | Procedure for the construction of underground transport infrastructures | |
| CN102322027A (en) | A kind of method that adopts the Mine Method expansion to dig shield tunnel construction subway station | |
| CN106437741B (en) | A kind of New Austrian Tunneling Method rock tunnel(ling) machine | |
| CN107965341A (en) | A kind of large-section underground pipe canopy pipe network concrete support method | |
| CN102278110A (en) | Movable two-arm of lifting platform hanging wall anchor rod and anchor cable construction drill carriage | |
| CN107023309B (en) | Arch frame mounting trolley | |
| CN105673046A (en) | Twin-arch tunnel middle pilot tunnel vault backfilling construction method | |
| WO2020259059A1 (en) | Tbm parallel heading tunnel trunk construction method | |
| CN111997642B (en) | All-rock roadway and tunnel tunneling and anchoring all-in-one machine and control method thereof | |
| CN103244143B (en) | A kind of underground construction excavating construction method and underground station | |
| CN103244131A (en) | Annular beam rock drilling device of tunnel boring machine | |
| CN202055821U (en) | Two-arm top slope anchor rod and anchor rope construction drill wagon with movable lifting platform | |
| CN104373147A (en) | Folding extension type roadway hydraulic bracket and application method thereof | |
| CN206888990U (en) | A kind of Shallow Covered Metro Station separates open type structure | |
| CN105909262B (en) | A kind of bored tunnel driving method | |
| CN109184752B (en) | Supporting structure for coal mine to penetrate through old kiln goaf and supporting method thereof | |
| CN205036380U (en) | Block of four encircles PBA and secretly digs subway station major structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200925 |
|
| RJ01 | Rejection of invention patent application after publication |